This skript shows calibration and validation data for surface moisture modelling in the McMurdo Dry Valleys in a descriptive way.
Read in iButton data for the different valleys.
Get DEM to write elevation into the location data
Project iButton data to EPSG 3031
## valley n_locations
## 1 Alatna_Valley 8
## 2 Hidden_Valley 6
## 3 iBut 94
## 4 McKelvey_Valley 16
## 5 Taylor_Valley 6
## 6 Victoria_Valley 12
## 7 Wright_Valley 22
Use only data, where temperature is higher than -1°C
To see the iButton logger location names, hold cursor over point.
TV-S-500 seems to be below a snow patch in a shady corner and is fully saturated.
Dataset can be downloaded here: Lake Fryxell
## Ă¯..DATASET_CODE METLOCID DATE_TIME RH RH_COMMENTS
## 1 FRLM_RH FRLM 12/07/1993 14:10 59.76
## 2 FRLM_RH FRLM 12/07/1993 14:20 59.53
## 3 FRLM_RH FRLM 12/07/1993 14:30 59.16
## Ă¯..DATASET_CODE METLOCID DATE_TIME SOILT0CM SOILT5CM SOILT10CM
## 1 FRLM_SOILT FRLM 11/30/1994 14:40 -1.35 NA NA
## 2 FRLM_SOILT FRLM 11/30/1994 15:00 -2.68 NA -6.44
## 3 FRLM_SOILT FRLM 11/30/1994 15:20 -2.82 NA -6.57
## SOILT_COMMENTS
## 1
## 2
## 3
Years that are covered in this dataset are:
Let’s for now take a look at the year 2019 and focus on Relative Humidity and the soil temperature at surface level.